HTML Geolocation API is used to fetch geographical position of a user. It can be possible only the user approves it. Geolocation is more accurate for the GPS Enabled mobile devices and others less accuracy. In this post how retrieve the address using Geolocation and Google Map API.
HTML
<html>
<body>
<input type='button' value='Find

The content between tags display at the top of the browser window. The syntax for dynamically change web pages title by using javascript.
document.title="Welcome to Tech Dasher"
This can used for chat, email notification, tab changes.